Objects launched sideways

Answer Key - Grade 11 Science Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. 1.

   A ball rolls off a table at 2 m/s and lands 0.4 s later. With no air, how far from the table does it land, Ari?

   0.8 m
2. 2.

   A ball rolls off a table at 3 m/s and lands 0.5 s later. With no air, how far from the table does it land, Bo?

   1.5 m
3. 3.

   A ball rolls off a table at 1.5 m/s and lands 0.4 s later. With no air, how far from the table does it land, Esme?

   0.6 m
5. 4.

   In the trajectory grid, what happens to the horizontal arrow as the ball falls, Jun?

   • It stays at 2 m/s
   • It gets longer
   • It gets shorter
6. 5.

   In the trajectory grid, what happens to the downward arrow as the ball falls, Kira?

   Use the picture in question 4.

   • It grows by 0.98 m/s every 0.1 s
   • It stays the same
   • It shrinks
7. 6.

   One ball rolls off a table as another is dropped from the same height at the same moment. Which lands first, Milo?

   • They land together
   • The rolled ball
   • The dropped ball; the rolled one stays up longer
8. 7.

   Noah rolls a ball off the same table faster. What changes?

   • It lands farther, after the same time
   • It stays in the air longer than before
   • It lands sooner
9. 8.

   With no air resistance, what force acts on the ball after it leaves the table, Pia?

   • No force on it
   • A forward push that keeps it moving
   • Gravity, straight down
10. 9.

    Water leaves a level garden hose and curves down to the ground. Why does it curve, Tala?

    • Water has no weight
    • Its sideways speed runs out
    • Gravity pulls it down as it moves sideways
11. 10.

    A drone flying forward at a steady speed drops a ball. With no air, where is the ball as it falls, Zee?

    • Ahead of the drone
    • Right below the drone
    • Falling straight down and left behind